Sonnet Software provides high-frequency electromagnetic (EM) analysis software. Sonnet’s software extracts models for planar circuits and antennas, including spiral inductors, filters, microstrip, stripline, co-planar waveguide, and both PCB and integrated circuits incorporating large numbers layers of stratified dielectric material. Sonnet operates completely from within the Cadence Virtuoso, National Instruments Microwave Office, and Keysight ADS environments.